3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mykey = uniqid("\x00"); $mykey = preg_replace('/[a-zA-Z]/', "4", $mykey); var_dump($mykey); $var[$mykey] = TRUE; foreach($var as $key => $val) { if ($key === $mykey) { echo 'You got it right'; } else { echo 'You got it wrong'; } }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.2.00.0000.01219.41
7.1.70.0040.00417.36
7.1.60.0090.01519.61
7.1.50.0110.01417.05
7.1.00.0100.07022.46
7.0.200.0040.00417.05
7.0.140.0030.07022.12
7.0.100.0170.06319.96
7.0.90.0100.08020.02
7.0.80.0100.07719.88
7.0.70.0100.08019.92
7.0.60.0170.07019.85
7.0.50.0030.08320.36
7.0.40.0000.08720.18
7.0.30.0070.08020.05
7.0.20.0070.08320.13
7.0.10.0200.05320.09
7.0.00.0130.07319.95
5.6.280.0030.07320.86
5.6.250.0070.08020.48
5.6.240.0030.08320.59
5.6.230.0100.08020.59
5.6.220.0200.07320.63
5.6.210.0100.07320.64
5.6.200.0030.09320.94
5.6.190.0100.08721.02
5.6.180.0130.07721.05
5.6.170.0030.08021.13
5.6.160.0130.06721.12
5.6.150.0100.08321.02
5.6.140.0030.08720.93
5.6.130.0130.08021.10
5.6.120.0130.07321.06
5.6.110.0070.07021.16
5.6.100.0300.06320.92
5.6.90.0130.08721.02
5.6.80.0070.06020.49
5.6.70.0000.08020.51
5.6.60.0070.05020.46
5.6.50.0030.08320.48
5.6.40.0170.07020.46
5.6.30.0030.05020.47
5.6.20.0100.07320.37
5.6.10.0130.05320.39
5.6.00.0030.08020.39
5.5.380.0030.08720.40
5.5.370.0170.06720.49
5.5.360.0130.07720.33
5.5.350.0100.08020.31
5.5.340.0030.08020.86
5.5.330.0030.08720.83
5.5.320.0130.07320.78
5.5.310.0070.08320.89
5.5.300.0100.06320.89
5.5.290.0070.07720.91
5.5.280.0070.08720.77
5.5.270.0070.07720.91
5.5.260.0130.07020.79
5.5.250.0070.08320.72
5.5.240.0200.07020.25
5.5.230.0130.04720.16
5.5.220.0070.07720.26
5.5.210.0030.08320.30
5.5.200.0030.08020.24
5.5.190.0030.07020.15
5.5.180.0070.08020.23
5.5.160.0000.05320.25
5.5.150.0030.08020.23
5.5.140.0070.07320.16
5.5.130.0200.05320.24
5.5.120.0070.07320.21
5.5.110.0070.07720.23
5.5.100.0130.06720.11
5.5.90.0030.07719.92
5.5.80.0170.07020.07
5.5.70.0030.07720.11
5.5.60.0030.07720.05
5.5.50.0130.07020.04
5.5.40.0100.07020.14
5.5.30.0070.07320.09
5.5.20.0200.06020.09
5.5.10.0130.07320.09
5.5.00.0130.04320.03
5.4.450.0070.07719.37
5.4.440.0000.08319.40
5.4.430.0100.07319.51
5.4.420.0070.08719.27
5.4.410.0170.06019.30
5.4.400.0070.08019.24
5.4.390.0030.07719.10
5.4.380.0000.08319.16
5.4.370.0030.08019.12
5.4.360.0070.07719.10
5.4.350.0070.07318.96
5.4.340.0130.07018.98
5.4.320.0100.07718.95
5.4.310.0130.06718.82
5.4.300.0170.06018.79
5.4.290.0070.07018.95
5.4.280.0100.07319.10
5.4.270.0030.08019.06
5.4.260.0130.07019.23
5.4.250.0070.07319.04
5.4.240.0130.03718.80
5.4.230.0030.08318.96
5.4.220.0100.07018.80
5.4.210.0030.08019.03
5.4.200.0030.08019.02
5.4.190.0030.07319.02
5.4.180.0070.07318.77
5.4.170.0070.07718.94
5.4.160.0130.07018.96
5.4.150.0070.06719.08
5.4.140.0100.06716.29
5.4.130.0100.05316.25
5.4.120.0170.05716.37
5.4.110.0070.07016.41
5.4.100.0070.07316.54
5.4.90.0100.06316.21
5.4.80.0070.07016.21
5.4.70.0030.07016.32
5.4.60.0000.07316.31
5.4.50.0130.06316.39
5.4.40.0070.06316.33
5.4.30.0070.07316.28
5.4.20.0100.06716.33
5.4.10.0100.07016.38
5.4.00.0070.06715.52
5.3.290.0070.06714.63
5.3.280.0100.04014.57
5.3.270.0100.07014.59
5.3.260.0070.08314.58
5.3.250.0070.07714.59
5.3.240.0100.07014.46
5.3.230.0130.07014.56
5.3.220.0100.07014.55
5.3.210.0100.06014.43
5.3.200.0070.07314.43
5.3.190.0130.07014.55
5.3.180.0000.07714.43
5.3.170.0070.06014.55
5.3.160.0100.06714.43
5.3.150.0070.05714.55
5.3.140.0070.07714.55
5.3.130.0070.07314.51
5.3.120.0070.08014.37
5.3.110.0070.07714.41
5.3.100.0070.07014.04
5.3.90.0000.08013.95
5.3.80.0130.07013.88
5.3.70.0030.07313.88
5.3.60.0000.08313.86
5.3.50.0100.07013.95
5.3.40.0070.07013.90
5.3.30.0130.06013.87
5.3.20.0030.07313.67
5.3.10.0030.07713.64
5.3.00.0100.06013.42
5.2.170.0100.06011.63
5.2.160.0030.06311.63
5.2.150.0030.05011.63
5.2.140.0070.05711.63
5.2.130.0100.05711.63
5.2.120.0000.04311.63
5.2.110.0070.05711.63
5.2.100.0100.04711.63
5.2.90.0100.05311.63
5.2.80.0030.05311.63
5.2.70.0070.05711.63
5.2.60.0000.06711.63
5.2.50.0070.06311.63
5.2.40.0100.05711.63
5.2.30.0070.06011.63
5.2.20.0100.05311.63
5.2.10.0030.06711.63
5.2.00.0100.05711.63
5.1.60.0000.05711.63
5.1.50.0070.04711.63
5.1.40.0070.05311.63
5.1.30.0000.05711.63
5.1.20.0030.05711.63
5.1.10.0030.05711.63
5.1.00.0030.05311.63
5.0.50.0000.04311.63
5.0.40.0000.03011.63
5.0.30.0100.05311.63
5.0.20.0000.03311.63
5.0.10.0070.04011.63
5.0.00.0000.06711.63
4.4.90.0100.02711.63
4.4.80.0070.03011.63
4.4.70.0000.03011.63
4.4.60.0000.03711.63
4.4.50.0030.03311.63
4.4.40.0030.05711.63
4.4.30.0030.03311.63
4.4.20.0030.03311.63
4.4.10.0000.03311.63
4.4.00.0030.05011.63
4.3.110.0000.03711.63
4.3.100.0030.03311.63
4.3.90.0070.02011.63
4.3.80.0000.05311.63
4.3.70.0030.02311.63
4.3.60.0030.03011.63
4.3.50.0030.03011.63
4.3.40.0000.05311.63
4.3.30.0030.03711.63
4.3.20.0000.04011.63
4.3.10.0070.02711.63
4.3.00.0000.03711.63

preferences:
33.95 ms | 400 KiB | 5 Q